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OpenAdvisories
High · 7.4 CVE-2026-103314 EUVD-2026-104252GHSA-xxr5-h8gc-q63j

Stackrox: stackrox: saml response replay allows multiple central authentication tokens

Published Oct 19, 2026 · Updated Oct 31, 2026 · Assigned by redhat

Vendor: Red Hat Product: Red Hat Advanced Cluster Security for Kubernetes 4.10 Product: Red Hat Advanced Cluster Security for Kubernetes 4.11

Description

A flaw was found in Red Hat Advanced Cluster Security for Kubernetes (RHACS). The Central SAML authentication ACS endpoint does not retain used SAML assertion or response identifiers to prevent replay. An attacker who obtains a valid, unexpired signed SAML response can submit it multiple times and receive distinct Central authentication tokens for the mapped identity.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Advanced Cluster Security for Kubernetes 4.10 — —
Red Hat Red Hat Advanced Cluster Security for Kubernetes 4.11 — —

Advisories 1

References